supply of set of 120 ah vrla batteries consisting of 19 monoblocks [57 cells] of 6v, 120 ah battery, with suitable steel trays for fixing in existing battery boxes, along with fixing arrangements, conforming to rdso specification no. rdso/pe/spec/ac/0009-2021 [rev.3] any modification or change as advised by rdso will be carried out by the manufacturer.set of 120 ah vrla batteries consisting of 19 monoblocks [57 cells] of 6v, 120 ah battery, with suitable steel trays for fixing in existing battery boxes, along with fixing arrangements, conforming to rdso specification no. rdso/pe/spec/ac/0009-2021 [rev.3] any modification or change as advised by rdso will be carried out by the manufacturer.,set of 120 ah vrla batteries consisting of 19 monoblocks [57 cells] of 6v, 120 ah batte ry, with suitable steel trays for fixing in existing battery boxes, along with fixing arrangements, confor ming to rdso specification no. rdso/pe/spec/ac/0009-2021 [rev.3] any modification or change as a dvised by rdso will be carried out by the manufacturer. [ warranty period: 30 months after the dat e of delivery ] ]